# Lesson video

In progress...

Hi, everyone.

my name is Miss Sabzvari, and I'm really excited that you decided to join me today in our Maths lesson.

The unit that we're studying is multiplication and division.

In the previous lesson, we focused on spotting patterns in the two, five and 10 multiplication tables.

In this lesson we'll be solving multiplication and division problem.

So, when you're ready, let's begin.

Let's have a look at today's lesson agenda.

First, we'll begin by solving missing number equations.

After that, we will solve more missing number equations.

Before we begin today's lesson, you will need the following items. You will need something to write with and something to write on, and you will need some cues or counters.

Alternatively, you can ask your parent or carer to cut out some small pieces of paper that you can use instead.

So please pause the video now and get the items that you need.

Solving missing number equations.

So let's have a look at the number equation on our screen.

What I would like you to do is to pause the video and I would like you to solve this problem that says, 12 divided by one is equal to three.

What is the missing number? How can you solve this? Show your answer using manipulatives.

Do that now.

Good work.

So you should have had that 12 divided by four is equal to three.

So I would like to work out this problem.

So what I'm going to do, is I'm going to start with 12 counters.

And I'm going to share them into three equal groups.

So one, two, three.

And I'm going to add a counter to each group until I run out of counters.

Okay.

And I know that in each group, I'm going to have one, two, three, four.

So I know that 12 divided by four is equal to three.

One, two, three, four.

Next problem.

Five multiplied by blank is equal to 20.

Yeah.

Do that now.

Great work.

So we know that five multiplied by four is equal to 20.

The next problem is, five multiplied by what number equals 20? So I know that another way that I could write this problem is, 20 shared by five is equal to blank.

So I know that I have 20 counters altogether, okay? And I'm going to share them between five groups, okay? 'Cause the opposite of multiplication is division, okay? So I'm going to again, create five groups.

And I'm going to add to each group until I run out of my 20 counters.

So I know that there are, one, two, three, four in each group.

So five lots of four is equal to 20.

Let's have a look at our talk task.

What I would like you to do is you're going to crack the code.

So, you have to identify the missing numbers in the equations.

Then, match the numbers to the letters to complete the codeword.

Okay? So first you need to complete these equations and then, the number that you get matches a letter.

Okay? And I want you to find out, what the word is.

Do that, now.

So, looking at the talk task and the answers, we know that 10 divided by five, or shared into five equal groups is equal to two.

Five multiplied by 10, is equal to 50, 30 divided by 10, is equal to three, and one multiplied by five, is equal to five.

So the first few letters are D-I-V-I-S-I-O-N.

So, division is the word that we're looking for.

Because we know that 14 divided by two, is equal to seven.

25 divided by five is equal to five.

Zero multiplied by five is equal to zero.

And five divided by one is equal to five.

Well done if you've got that correct.

Missing number equations.

So we know that the answer is three.

So 12 divided by what number, is going to give us three? Pause the video now, come back down the box there.

Great life.

So we know that 12 divided by three, is going to be equal to four.

Five multiplied what number gives us 20? How can you solve this? Show your answer using manipulatives.

Good work.

So we know, that five multiplied by four is equal to 20.

Some of you might have used skip counting to get there.

If you might have already known the answer, whichever way you got to it, well done.

Now, moving on to independent task.

What I would like you to do, is identify the missing numbers in the equations, and then to match the numbers to your letters to complete the codeword.

Great, so looking at the first section, the word is Maths, because we know that four multiply by five is equal to 20.

One lots of 10 is equal to 10, two lots of nine is equal to 18, 30 divided by three is equal to 10, and we know that two lots of four is equal to.

The next word is "is" and the last word is "fun".

So, Math is fun.

Because we know that 25 divided by five is equal to five, 40 divided by eight is equal to five, 10 divided by five is equal to two, two multiplied by seven is equal to 14 and 60 divided by 10 is equal to six.

Great work everybody.